Purpose: To make a therapeutic membrane with aqueous extract from coptis root and explore its adjunctive effects for treating chronic periodontitis.
Methods: Drug membrane from coptis root aqueous extract was developed; 4 teeth in 30 patients with moderate to advanced periodontitis were randomly divided into four groups: coptis root membrane, iodine glycerin, single drug membrane and blank control group. All parameters including plaque index (PI), probing depth (PD), attachment loss (AL) and bleeding on probing (BOP) were measured at baseline, 4 and 7 weeks after treatment. Analysis of variance and chi-square test were carried out for analysis.
Results: In all four groups, there were significant differences of PD, AL, BOP between baseline and 4,7 weeks after treatment (P<0.05), the treatment effect of coptis root membrane was significantly superior to that of other three groups (P<0.05). Moreover, all the parameters improved continuously.
Conclusion: Use of coptis root membrane as an adjunctive method after scaling can significantly improve the treatment effect of periodontitis.
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